Abstract
A quadratic Lagrangian for the Einstein theory of gravitation is proposed. It gives all that is obtained from Hilbert’s (linear) Lagrangian and, in addition, the tracelessness of the Weyl conformal tensor.
- Received 17 September 1984
DOI:https://doi.org/10.1103/PhysRevD.31.1489
©1985 American Physical Society
